Answer:
The sentence that is consistently iambic is:
D. Jamal requests a pen.
Step-by-step explanation:
We can define iamb or iambic foot as a sequence consisting of an unstressed syllable followed by a stressed one. Therefore, if we highlight the stressed syllable in each line, we will be able to verify which one is iambic:
A.Betty told me secrets.
B.Give me your sympathy.
C.Understand pirouettes.
D.Jamal requests a pen.
The only sentence that presents iambs is the last one. It contains three sequences of an unstressed syllable followed by a stressed one, which makes it an iambic trimeter. Therefore, letter D is the right answer.